Utah Quarterly Tax Calculator
Calculate your estimated quarterly tax payments for federal and Utah state taxes. Designed for self-employed individuals, freelancers, and independent contractors.
UT State Tax: Flat 4.7%
Quarterly Payment Amount
$6,457
Per quarter (4 remaining)
Annual Tax Breakdown
2026 Payment Schedule
Jan 1 - Mar 31
Due: April 15, 2026
$6,457
Apr 1 - May 31
Due: June 15, 2026
$6,457
Jun 1 - Aug 31
Due: September 15, 2026
$6,457
Sep 1 - Dec 31
Due: January 15, 2027
$6,457
Don't miss your quarterly payments!
The IRS may charge penalties and interest if you underpay or pay late. Consider setting up automatic payments or calendar reminders.
Utah Quarterly Tax Highlights
Utah has a flat 4.65% income tax rate
Simple calculation with single rate
Use Form TC-40ES for quarterly payments
Utah Quarterly Tax FAQ
What is Utah's income tax rate?
Utah has a flat 4.65% income tax rate that applies to all income levels equally.
Utah Estimated Quarterly Tax Payments for Self-Employed Workers in 2026
Self-employed workers in Utah face two tax obligations: federal estimated taxes filed with the IRS and state estimated taxes filed with the Utah State Tax Commission. Utah imposes a flat 4.65% income tax rate on all taxable income. If you expect to owe $1,000 or more in Utah state income tax after withholding and credits, you must make quarterly estimated payments using Form TC-40ES.
Utah's flat 4.65% rate applies to all income equally. Utah offers a nonrefundable taxpayer tax credit that effectively provides a standard deduction equivalent. The state requires estimated payments if you expect to owe $1,000 or more.
| Tax Layer | Rate / Range | Filed With | Form |
|---|---|---|---|
| Federal income tax | 10% – 37% | IRS | 1040-ES |
| Self-employment tax | 15.3% | IRS | 1040-ES / SE |
| Utah state income tax | 4.65% | Utah State Tax Commission | Form TC-40ES |
How Utah's Flat 4.65% Income Tax Affects Your Quarterly Payments
Utah uses a flat tax rate of 4.65%, which simplifies quarterly tax calculations. Regardless of income level, every dollar of taxable income is taxed at the same rate. This makes it straightforward to estimate your state quarterly payments — simply multiply your projected net self-employment income by 4.65% and divide by four.
For a single self-employed worker in Utah earning $100,000 in net self-employment income, the estimated annual tax breakdown is:
| Tax Component | Estimated Amount | Calculation Basis |
|---|---|---|
| Federal income tax | ~$11,600 | After $15,700 standard deduction, 2026 brackets |
| Self-employment tax | ~$14,130 | 15.3% on 92.35% of net earnings |
| Utah state income tax | ~$4,650 | 4.65% flat rate |
| Total annual tax | ~$30,380 | |
| Quarterly payment | ~$7,595 | Total / 4 quarters |
State payments can be made online through the Utah State Tax Commission portal at tax.utah.gov, by mail with a Form TC-40ES voucher, or via electronic funds transfer where available.
Federal Self-Employment Tax and Quarterly Due Dates
All self-employed workers must pay federal self-employment (SE) tax of 15.3% on 92.35% of net earnings. This consists of 12.4% for Social Security (on earnings up to $184,500 in 2026) and 2.9% for Medicare (no cap). An additional 0.9% Medicare surtax applies to earnings above $200,000 (single filers).
Both Utah and federal estimated tax payments follow the same quarterly schedule:
| Quarter | Income Period | Due Date |
|---|---|---|
| Q1 | January 1 – March 31 | April 15, 2026 |
| Q2 | April 1 – May 31 | June 15, 2026 |
| Q3 | June 1 – August 31 | September 15, 2026 |
| Q4 | September 1 – December 31 | January 15, 2027 |
To avoid underpayment penalties, pay at least 100% of your prior-year tax liability (or 110% if your AGI exceeds $150,000) spread across four equal payments, or at least 90% of your current-year tax. You can deduct 50% of your self-employment tax from your adjusted gross income, reducing both your federal and Utah taxable income.
Related Calculators
Official References
This calculator uses current federal and Utah tax rates and schedules:
- IRS Estimated Tax Guidelines
Federal quarterly tax requirements and Form 1040-ES
- Utah State Tax Commission
Official Utah tax authority
- IRS Self-Employment Tax
Social Security and Medicare tax information
This calculator provides estimates based on 2026 tax rates. Your actual tax liability may vary based on deductions, credits, and other factors. Consult a tax professional for personalized advice.